// 延迟加载
Ext.onReady(function() {
			var panel = new Ext.TabPanel({
						width : 300,
						height : 200,
						items : [new Ext.Panel({
											title : "面板1",
											height : 30
										}), new Ext.Panel({
											title : "面板2",
											height : 30
										}), new Ext.Panel({
											title : "面板3",
											height : 30
										})]
					});
			panel.render("hello");
		});